Some forms of EB are dominant, some are recessive and some are spontaneous mutations (abnormal changes in a gene that occurred during the formation of the egg or sperm) In dominant forms of EB, the disease gene is inherited from only one parent who has the disease and there is a 50% chance with each pregnancy the baby will have EB. In the recessive forms, the disease gene is inherited from both parents. Neither parent shows signs of the disease, they are just carriers of the EB gene.

Epidermolysis Bullosa, or EB for short, is the name given to a group of rare genetic blistering skin disorders. EB causes the skin to be so fragile that even minor rubbing can cause blistering. In severe EB, daily bandage changing is required to treat the many open wounds and blisters. EB can also effect other areas such as the eyes and internally such as the mouth, esophagus, stomach, intestines, upper airway, bladder, and genitals. The skin is made up of many layers.

Of these, less than 300 have the same form of EB that I was born with. (Recessive Dystrophic - Hallopeau Siemens Epidermolysis Bullosa.) Only one in a million babies are born with the Recessive Dystrophic form of EB (RDEB). I prefer to say I'm one in a million  :o)

Most people with EB have inherited the condition through genes they have received from one or both parents. The faulty genes cause structural abnormalities in the skin. Genes govern the formation of different types of protein in the skin, including collagen and keratin. When any of these proteins is bad, the skin becomes so fragile it can literally fall apart.

By doing a skin biopsy (taking a small sample of skin and examining it under a microscope), a dermatologist can identify where the skin separation occurs and what form of EB the person has. One diagnostic test involves use of a microscope and reflected light to see if proteins needed for forming connecting fibrals, filaments or hemidesmosomes are missing or reduced in number.

There is currently no cure for EB. At this time the best hope is gene therapy. In 1993 the gene that causes Dystrophic EB was located. That was the first major step. More advances are being made every year giving much hope for the future. Scientists are currently testing the delivery of modified cells to genetically altered mice that have EB traits.

In 1886, Kobner introduced the name epidermolysis bullosa hereditaria to describe a multigeneration affected family with mildly generalized, predominantly acral, serous blistering. This name is still widely used today. During the end of the nineteenth and beginning of the twentieth centuries, other famous dermatologists, including Brocq and Hallopeau, continued to group these patients under such terms as congenital traumatic pemphigus, congenital traumatic blistering, or acantholysis bullosa.

There are currently only two types of EB that are considered lethal. The first is Junctional Herlitz, which is often deadly to newborns. Junctional Herlitz effects internally, including the airway and other internal organs causing major complications. Many with this form pass away within a few weeks of birth.  The other form is RDEB-HS (the kind I have).

Thankyou for taking the time to learn about Epidermolysis Bullosa. Please help spread awareness and pass this site onto others. No, not at all, in fact most with EB excel in school. EB children can be mainstreamed into regular classes with the other kids. Some severe forms of EB cause the person/child to look much younger than they actually are, however don't let this fool you! In some forms of EB the skin does get better with age, in some cases dramatically better.

Genetics may play a role in PMDD. Studies have shown that identical twins are more likely to share the disorder (93%) than non-identical (fraternal) twins (44%), and daughters of mothers with PMDD are more likely to have it themselves. However, no specific genes have been identified to account for PMDD. It is best to simply say that genetics may put a woman at greater risk for developing the disorder.

There is a genetic factor in the development of allergic disease. If one parent has allergic disease, the estimated risk of a child to develop allergies is 48%; the child's estimated risk grows to 70% if both parents have a history of allergies.

Research shows that the risk for developing alcoholism does indeed run in families. The genes a person inherits partially explain this pattern, but lifestyle is also a factor. Currently, researchers are working to discover the actual genes that put people at risk for alcoholism. Your friends, the amount of stress in your life, and how readily available alcohol is also are factors that may increase your risk for alcoholism. But remember: Risk is not destiny.

Research shows that ADHD tends to run in families, so there are likely to be genetic influences. Children who have ADHD usually have at least one close relative who also has ADHD. And at least one–third of all fathers who had ADHD in their youth have children with ADHD. Even more convincing of a possible genetic link is that when one twin of an identical twin pair has the disorder, the other is likely to have it too.

In humans, there are two modes of inheritance: autosomal dominant and autosomal recessive (with at least two, and possibly three different autosomal dominant forms of PKD caused by different genes at different loci). To date, only the autosomal dominant form has been identified in cats. To quote Dr. DiBartola, Professor of Veterinary Clinical Sciences at The Ohio State University College of Veterinary Medicine, and Co-Editor of the Journal of Veterinary Internal Medicine (one of the Dr.

Genetics is a complex subject, and The Foundation Fighting Blindness has prepared another booklet, "The Inheritance of Retinal Degenerations," to explain this topic in detail. (This can be ordered by using The Foundation's Publication Order Form.) There are so many different forms of RP, which fall within one of three standard inheritance patterns. Each type of inheritance will create a different pattern of affected and unaffected family members.

Most cases of PWS are attributed to a spontaneous genetic error that occurs at or near the time of conception for unknown reasons. In a very small percentage of cases (2 percent or less), a genetic mutation that does not affect the parent is passed on to the child, and in these families more than one child may be affected. A PWS-like disorder can also be acquired after birth if the hypothalamic portion of the brain is damaged through injury or surgery.

Most cases of epilepsy are not inherited, although some types have a genetic basis. Most of these types are easily controlled with medication. Epilepsy syndromes with a genetic basis: Primary Generalized Epilepsies, Benign Rolandic Epilepsy, Nocturnal Frontal Lobe Epilepsy, Familial Temporal Lobe Epilepsy, Benign Familial Neonatal Seizures and Benign Familial Infantile Spasms.

Only 3 to 5% of cases are inherited; the rest arise as an accident of chromosome arrangement during meiosis. For details, see my essay on the origin of trisomy 21 or Dr. Paul Benke's essay on the types of DS, and the risk and recurrence risk of DS. No. Down syndrome occurs at conception, so nothing in the pregnancy can cause Down syndrome to occur. As for prior to conception, the research all shows that drug or alcohol use does not increase the risk of having a child with DS.

Lupus is not inherited, but it is believed that the tendency to develop lupus is inherited. However, although a person may have the genetic markers for lupus, he/she will not get lupus unless it is triggered by something. Some people, who have the genetic markers, will never develop lupus.

Retinal degenerations affect men and women of all ages, races, cultures, and ethnic backgrounds. The broad range of retinal degenerative diseases affects at least six million Americans. Approximately 100,000 people in the United States are affected by retinitis pigmentosa or Usher syndrome, which is a variation of RP that also impairs hearing.

Research shows that the risk for developing alcoholism does indeed run in families. The genes a person inherits partially explain this pattern, but lifestyle is also a factor. Currently, researchers are working to discover the actual genes that put people at risk for alcoholism. Friends, the amount of stress in life, and how readily available alcohol is also are factors that may increase risk for alcoholism.1 But remember: Risk is not destiny.

MSS is autosomal recessive. It occurs with equal frequency in males and females. If both parents are carriers, there is a 25% chance that any child will have the disorder. In November 2005, a gene (SIL1) was identified that is responsible for about half of the known cases of MSS.